On seeing them you would fancy them to be awake though they were asleep; and We caused them to turn their sides to their right and to their left, and their dog sat stretching out its forelegs on the threshold of the Cave. Had you looked upon them you would have certainly fled away from them, their sight filling you with terror. 18 And similarly We awakened them so that they may enquire about each other; a speaker among them said, “How long have you stayed here?” Some among them said, “We have stayed a day or part of a day”; the others said, “Your Lord well knows how long you have stayed; therefore send one of you to the city with this silver coin – he may then check which food available there is purer, in order to bring some of it for you to eat – and he must be courteous and not inform anyone about you.” 19 "For if they should come upon you, they would stone you or force you to return to their cult, and in that case ye would never attain prosperity." 20 We caused their story to become public so that people would know that God's promise was true and that there is no doubt about the coming of the Day of Judgment. They started to argue with each other about the matter (Resurrection) and some of them said, "Let us establish a building at the youths' sleeping place (to hide them). Their Lord knew best their intentions about them. The majority prevailed in their suggestion of the establishment of a mosque in that place. 21 (Some) say they were three, the dog being the fourth among them; (others) say they were five, the dog being the sixth,- doubtfully guessing at the unknown; (yet others) say they were seven, the dog being the eighth. Say thou: "My Lord knoweth best their number; It is but few that know their (real case)." Enter not, therefore, into controversies concerning them, except on a matter that is clear, nor consult any of them about (the affair of) the Sleepers. 22